In Firefox v.10.0.9 (stuck on a corporate box at the moment with only that and IE 8) the Popover appears with the title, but the template doesn't appear inside it.
Does this happen on both popovers or just the one with the binding inside of it?
Both popovers in the examples.
Ok thanks for finding this will look into this when I get a chance to install FF 10
Possibly more versions of firefox also have issues as pointed out by some users on reddit.
outerHTML not supported in some firefox versions Issue #1
This issue should be fixed now was caused because older versions of firefox dont support outerHTML.